CD audio is generally 'uncompressed'.
True
False
Pulse Code Modulation is what:
When audio is recorded in bursts.
A type of compression.
A digital representation of an analog wave.
An analog representation of a digital wave.
What term best explains the Shannon-Nyquist Sampling Theory?
The sample rate must be greater than the bit depth.
The sample rate must be above 42.
The sample rate must be equal to or twice the highest frequency
The sample rate must be equal to or half the highest frequency
Which of the following statements are true? (Choose two answers)
Bit Depth makes no difference to the quality of audio.
A higher Bit Depth increases dynamic range and allows a better recreation of the waveform.
A higher Sampling frequency increases dynamic range and allows a better recreation of the waveform.
A low Bit Depth causes waves to be distorted and unrealistic, no matter how high the sample rate.
How would you calculate the Data Rate of a PCM audio file?
By multiplying Bit Depth, Sampling Frequency and the Number of Channels.
By dividing the Sampling Frequency by the Bit Depth
By adding Bit Depth, Sampling Frequency and Number of Channels.
By multiplying Bit Depth to the Sampling Frequency and then subtracting the Number of Channels.
A Stereo CD at Redbook quality has: - A Bit Depth of 16 bits - Bit-rate of 1.4 Mb/second.
Two types of audio compression are: Compression and Lossless Compression
Out of the following codec suffixes, choose two which belong to lossy compression codecs.
.ogg
.wav
.flac
.ape
.aac
Lossy codecs use The Model to work around the limitations of human hearing.
The two types of masking which a codec uses are: Temporal Binaural Face Acoustic Anonymous( Temporal, Binaural, Face, Acoustic, Anonymous ) Masking and Halloween Instantaneous Ingenious Miscellaneous Simultaneous( Halloween, Instantaneous, Ingenious, Miscellaneous, Simultaneous ) Masking
The MPEG codec uses 32 overlapping even bands.
Fill in the gaps for this MPEG Layer 1 Bitstream:
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